Adjustable box wrench



FIG. 1 is a perspective view of an adjustable box wrench showing my newdesign;

FIG. 2 is a top plan view thereof;

FIG. 3 is a right end elevational view thereof;

FIG. 4 is a left end elevational view thereof;

FIG. 5 is a side elevational view thereof of the side opposite thatshown in FIG. 1;

FIG. 6 is a perspective view thereof with the locking ring shown in thereleased position.

The ornamental design for an adjustable box wrench, substantially asshown.